• Title/Summary/Keyword: Impregnating alkalization agent

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Development of Using Technique of Impregnating Alkalization Agent to Recover Durability of Carbonated Reinforcement Concrete Structures by Fire Damages (화재로 인해 중성화된 철근콘크리트구조물의 내구성 회복을 위한 침투성 알칼리성부여제의 이용기술개발)

  • Moo-Han, Kim;Yong-Ro, Kim;Jea-Bong, Jang
    • Fire Science and Engineering
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    • v.18 no.3
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    • pp.18-24
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    • 2004
  • Fire breaking out in carbonated reinforcement concrete structures considerably deteriorates the durability of them by propelling carbonation. However, the research and technical development to recover the durability is still in an underdeveloping stage in Korea. Therefore, this research aims to understanding the deteriorated durability of a carbonated structure, evaluating the performance of an impregnating alkalization agent to recover the durability and developing a way of using it.

An Experimental Study on the Alkali-Recovery Performance of Impregnating Alkalization Agent for Deteriorated Concrete by Carbonation (침투성 알칼리성부여제 도포에 의한 중성화된 콘크리트의 알칼리성 회복성능에 관한 실험적 연구)

  • 김무한;강석표;유재강;권영진
    • Journal of the Korea Concrete Institute
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    • v.13 no.1
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    • pp.9-15
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    • 2001
  • The low-durability performance of concrete structure occurs by interactive deterioration factors. In particular, carbonation increased with its time elapse is known as the general manner of deterioration characteristics. Recently, the fundamental researches of the carbonation mechanism, besides method and technique for durability improvement of deteriorated structure are advanced actively. So in this paper, alkali-recovery and maintenance performance when the impregnating alkalization agents are used, are compared and examined quantitively with the basis of past proposed study. As a result, alkali-recovery performance be ensured by impregnating alkalization agent on the carbonated concrete which has low pH by accelerated carbonation test. And alkali maintenance performance was effected by the finishing materials on the alkali recovered concrete.